ZIP (four registers)

Interleave elements from four vectors

Place the four-way interleaved elements from the four source vectors in the corresponding elements of the four destination vectors.

This instruction is unpredicated.

It has encodings from 2 classes: 8-bit to 64-bit elements and 128-bit element

8-bit to 64-bit elements
(FEAT_SME2)

313029282726252423222120191817161514131211109876543210
11000001size110110111000Zn00Zd00

ZIP { <Zd1>.<T>-<Zd4>.<T> }, { <Zn1>.<T>-<Zn4>.<T> }

if !HaveSME2() then UNDEFINED; if size == '11' && MaxImplementedSVL() < 256 then UNDEFINED; constant integer esize = 8 << UInt(size); integer n = UInt(Zn:'00'); integer d = UInt(Zd:'00');

128-bit element
(FEAT_SME2)

313029282726252423222120191817161514131211109876543210
1100000100110111111000Zn00Zd00

ZIP { <Zd1>.Q-<Zd4>.Q }, { <Zn1>.Q-<Zn4>.Q }

if !HaveSME2() then UNDEFINED; if MaxImplementedSVL() < 512 then UNDEFINED; constant integer esize = 128; integer n = UInt(Zn:'00'); integer d = UInt(Zd:'00');

Assembler Symbols

<Zd1>

Is the name of the first scalable vector register of the destination multi-vector group, encoded as "Zd" times 4.

<T>

Is the size specifier, encoded in size:

size <T>
00 B
01 H
10 S
11 D
<Zd4>

Is the name of the fourth scalable vector register of the destination multi-vector group, encoded as "Zd" times 4 plus 3.

<Zn1>

Is the name of the first scalable vector register of the source multi-vector group, encoded as "Zn" times 4.

<Zn4>

Is the name of the fourth scalable vector register of the source multi-vector group, encoded as "Zn" times 4 plus 3.

Operation

CheckStreamingSVEEnabled(); constant integer VL = CurrentVL; if VL < esize * 4 then UNDEFINED; constant integer quads = VL DIV (esize * 4); bits(VL) operand0 = Z[n, VL]; bits(VL) operand1 = Z[n+1, VL]; bits(VL) operand2 = Z[n+2, VL]; bits(VL) operand3 = Z[n+3, VL]; bits(VL) result; for r = 0 to 3 integer base = r * quads; for q = 0 to quads-1 Elem[result, 4*q+0, esize] = Elem[operand0, base+q, esize]; Elem[result, 4*q+1, esize] = Elem[operand1, base+q, esize]; Elem[result, 4*q+2, esize] = Elem[operand2, base+q, esize]; Elem[result, 4*q+3, esize] = Elem[operand3, base+q, esize]; Z[d+r, VL] = result;

Operational information

If PSTATE.DIT is 1:


Internal version only: aarchmrs v2023-12_rel, pseudocode v2023-12_rel, sve v2023-12_rel ; Build timestamp: 2023-12-15T16:46

Copyright © 2010-2023 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.